Exhibit 4.1




---



##### 



TIA Section
    
    IndentureReference
    
    Section310(a)(1)
    
    7.10(a)(2)
    
    7.10(a)(3)
    
    N.A.(a)(4)
    
    N.A.(a)(5)
    
    7.10(b)
    
    7.08, 7.10311(a)
    
    7.11(b)
    
    7.11312(a)
    
    2.05(b)
    
    12.03(c)
    
    12.03313(a)
    
    7.06(b)(1)
    
    N.A.(b)(2)
    
    7.06, 7.07(c)
    
    7.06, 12.02(d)
    
    7.06314(a)
    
    4.03, 4.04(b)
    
    N.A.(c)(1)
    
    12.04(c)(2)
    
    12.04(c)(3)
    
    N.A.(d)
    
    N.A.(e)
    
    12.05315(a)
    
    7.01(b)
    
    12.02(c)
    
    7.01(d)
    
    7.01(e)
    
    6.14316(a) (last sentence)
    
    2.09(a)(1)(A)
    
    6.05(a)(1)(B)
    
    6.04(a)(2)
    
    N.A.(b)
    
    6.07317(a)(1)
    
    6.08(a)(2)
    
    6.12(b)
    
    2.04318(a)
    
    12.01




---



##### 



PageARTICLE IDEFINITIONS AND INCORPORATION BY REFERENCESection 1.01.
    
    Definitions
    
    
    1Section 1.02.
    
    Other Definitions
    
    
    30Section 1.03.
    
    Incorporation by Reference of Trust Indenture Act
    
    
    31Section 1.04.
    
    Rules of Construction
    
    
    31Section 1.05.
    
    Acts of Holders
    
    
    32ARTICLE IITHE NOTESSection 2.01.
    
    Form and Dating; Terms
    
    
    33Section 2.02.
    
    Execution and Authentication
    
    
    34Section 2.03.
    
    Registrar and Paying Agent
    
    
    35Section 2.04.
    
    Paying Agent to Hold Money in Trust
    
    
    35Section 2.05.
    
    Holder Lists
    
    
    35Section 2.06.
    
    Transfer and Exchange
    
    
    36Section 2.07.
    
    Replacement Notes
    
    
    45Section 2.08.
    
    Outstanding Notes
    
    
    45Section 2.09.
    
    Treasury Notes
    
    
    46Section 2.10.
    
    Temporary Notes
    
    
    46Section 2.11.
    
    Cancellation
    
    
    46Section 2.12.
    
    Defaulted Interest
    
    
    46Section 2.13.
    
    CUSIP/ISIN Numbers
    
    
    47Section 2.14.
    
    Calculation of Principal Amount of Securities
    
    
    47ARTICLE IIIREDEMPTION AND PREPAYMENTSection 3.01.
    
    Notices to Trustee
    
    
    47Section 3.02.
    
    Selection of Notes to Be Redeemed
    
    
    47Section 3.03.
    
    Notice of Redemption
    
    
    48Section 3.04.
    
    Effect of Notice of Redemption
    
    
    49Section 3.05.
    
    Deposit of Redemption Price
    
    
    49Section 3.06.
    
    Notes Redeemed in Part
    
    
    49Section 3.07.
    
    Optional Redemption
    
    
    49Section 3.08.
    
    Mandatory Redemption
    
    
    50Section 3.09.
    
    Offer to Purchase
    
    
    50ARTICLE IVCOVENANTSSection 4.01.
    
    Payment of Notes
    
    
    51
 -i-




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##### 



PageSection 4.02.
    
    Maintenance of Office or Agency
    
    
    52Section 4.03.
    
    Reports
    
    
    52Section 4.04.
    
    Compliance Certificate; Notices of Default
    
    
    54Section 4.05.
    
    Taxes
    
    
    54Section 4.06.
    
    Stay, Extension and Usury Laws
    
    
    54Section 4.07.
    
    Restricted Payments
    
    
    54Section 4.08.
    
    Restrictions on Distributions from Restricted Subsidiaries
    
    
    61Section 4.09.
    
    Incurrence of Additional Indebtedness and Issuance of
Disqualified Stock and Preferred Stock
    
    
    62Section 4.10.
    
    Asset Sales
    
    
    68Section 4.11.
    
    Affiliate Transactions
    
    
    70Section 4.12.
    
    Liens
    
    
    72Section 4.13.
    
    Corporate Existence
    
    
    72Section 4.14.
    
    Repurchase at the Option of Holders Upon a Change of Control
    
    
    72Section 4.15.
    
    Guarantees of Indebtedness by Restricted Subsidiaries
    
    
    74ARTICLE VSUCCESSORSSection 5.01.
    
    Merger, Consolidation and Sale of All or Substantially All Assets
    
    
    74Section 5.02.
    
    Successor Corporation Substituted
    
    
    76ARTICLE VIDEFAULTS AND REMEDIESSection 6.01.
    
    Events of Default
    
    
    76Section 6.02.
    
    Acceleration
    
    
    77Section 6.03.
    
    Other Remedies
    
    
    78Section 6.04.
    
    Waiver of Defaults
    
    
    78Section 6.05.
    
    Control by Majority
    
    
    78Section 6.06.
    
    Limitation on Suits
    
    
    79Section 6.07.
    
    Rights of Holders to Receive Payment
    
    
    79Section 6.08.
    
    Collection Suit by Trustee
    
    
    79Section 6.09.
    
    Restoration of Rights and Remedies
    
    
    79Section 6.10.
    
    Rights and Remedies Cumulative
    
    
    79Section 6.11.
    
    Delay or Omission Not Waiver
    
    
    80Section 6.12.
    
    Trustee May File Proofs of Claim
    
    
    80Section 6.13.
    
    Priorities
    
    
    80Section 6.14.
    
    Undertaking for Costs
    
    
    80ARTICLE VIITRUSTEESection 7.01.
    
    Duties of Trustee
    
    
    81Section 7.02.
    
    Rights of Trustee
    
    
    82Section 7.03.
    
    Individual Rights of Trustee
    
    
    83Section 7.04.
    
    Trustees Disclaimer
    
    
    83Section 7.05.
    
    Notice of Defaults
    
    
    83Section 7.06.
    
    Reports by Trustee to Holders
    
    
    83Section 7.07.
    
    Compensation and Indemnity
    
    
    83
 -ii-




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##### 



PageSection 7.08.
    
    Replacement of Trustee
    
    
    84Section 7.09.
    
    Successor Trustee by Merger, Etc.
    
    
    85Section 7.10.
    
    Eligibility; Disqualification
    
    
    85Section 7.11.
    
    Preferential Collection of Claims Against Issuer
    
    
    85ARTICLE VIIILEGAL DEFEASANCE AND COVENANT DEFEASANCESection 8.01.
    
    Option to Effect Legal Defeasance or Covenant Defeasance
    
    
    85Section 8.02.
    
    Legal Defeasance and Discharge
    
    
    85Section 8.03.
    
    Covenant Defeasance
    
    
    86Section 8.04.
    
    Conditions to Legal or Covenant Defeasance
    
    
    86Section 8.05.
    
    Deposited Cash and U.S. Government Securities to
Be Held in Trust; Other Miscellaneous Provisions
    
    
    87Section 8.06.
    
    Repayment to Issuer
    
    
    88Section 8.07.
    
    Reinstatement
    
    
    88ARTICLE IXAMENDMENT, SUPPLEMENT AND WAIVERSection 9.01.
    
    Without Consent of Holders of Notes
    
    
    88Section 9.02.
    
    With Consent of Holders of Notes
    
    
    89Section 9.03.
    
    Compliance with Trust Indenture Act
    
    
    91Section 9.04.
    
    Revocation and Effect of Consents
    
    
    91Section 9.05.
    
    Notation on or Exchange of Notes
    
    
    91Section 9.06.
    
    Trustee to Sign Amendments, Etc.
    
    
    91Section 9.07.
    
    Payment for Consent
    
    
    91ARTICLE XGUARANTEESSection 10.01.
    
    Guarantee
    
    
    92Section 10.02.
    
    Limitation on Guarantor Liability
    
    
    93Section 10.03.
    
    Execution and Delivery of Guarantee
    
    
    93Section 10.04.
    
    Subrogation
    
    
    94Section 10.05.
    
    Benefits Acknowledged
    
    
    94Section 10.06.
    
    Release of Guarantees
    
    
    94ARTICLE XISATISFACTION AND DISCHARGESection 11.01.
    
    Satisfaction and Discharge
    
    
    95Section 11.02.
    
    Application of Trust Money
    
    
    95
 -iii-




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##### 



PageARTICLE XIIMISCELLANEOUSSection 12.01.
    
    Trust Indenture Act Controls
    
    
    96Section 12.02.
    
    Notices
    
    
    96Section 12.03.
    
    Communication by Holders of Notes with Other Holders of Notes
    
    
    97Section 12.04.
    
    Certificate and Opinion as to Conditions Precedent
    
    
    97Section 12.05.
    
    Statements Required in Certificate or Opinion
    
    
    97Section 12.06.
    
    Rules by Trustee and Agents
    
    
    98Section 12.07.
    
    No Personal Liability of Directors, Officers, Employees and Stockholders
    
    
    98Section 12.08.
    
    Governing Law
    
    
    98Section 12.09.
    
    Waiver of Jury Trial
    
    
    98Section 12.10.
    
    Force Majeure
    
    
    98Section 12.11.
    
    No Adverse Interpretation of Other Agreements
    
    
    98Section 12.12.
    
    Successors
    
    
    98Section 12.13.
    
    Severability
    
    
    98Section 12.14.
    
    Counterpart Originals
    
    
    99Section 12.15.
    
    Table of Contents, Headings, Etc.
    
    
    99
      -iv-




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##### 



Indenture
 W I T N E S S E T H
 Initial Notes
   Supplemental Indenture
  ARTICLE I
 DEFINITIONS AND INCORPORATION BY REFERENCE
 Section 1.01. Definitions
  144A Global Note
 Acquired Indebtedness
 Additional Interest
 Additional Notes
 Affiliate control controlling controlled by under common control with




---



##### 



Agent
 Applicable Premium
 Applicable Procedures
 Asset Sale
 disposition
           -2-




---



##### 



provided
     Bankruptcy Law
 Board of Directors
 -3-




---



##### 



Board Resolution
 Business Day
 Capital Stock
     Capitalized Lease Obligation
 Capitalized Software Expenditures
 Cash Equivalents
      -4-




---



##### 



provided
 Cash Management Obligations
 Cash Pooling Arrangements
 Change of Control
  provided
 
 -5-




---



##### 



Clearstream
 Code
 Consolidated Depreciation and Amortization Expense
 Consolidated Interest Expense
 plus
 less
   Consolidated Net Income provided however
   -6-




---



##### 



provided
 provided
      -7-




---



##### 



Consolidated Secured Debt Ratio less
 Consolidated Secured Debt Ratio
Calculation Date
 -8-




---



##### 



Consolidated Total Indebtedness
 -9-




---



##### 



Contingent Obligations primary obligations primary obligor
      Corporate Trust Office of the Trustee
 Credit Facilities provided
 CUSIP
 Custodian
 Default
 Definitive Note
 Depositary
 -10-




---



##### 



Designated Non-cash Consideration
 Designated Preferred Stock
 Disqualified Stock provided however
 EBITDA
  plus
 plus
 plus
  -11-




---



##### 



plus
 plus
 provided plus
 plus
 plus
 plus
   EMU
 Equity Interests
 Equity Offering
 -12-




---



##### 



euro
 Euroclear
 Event of Default
 Excess Proceeds
 Exchange Act
 Exchange Notes
 Excluded Contribution
    Financial Advisory Agreement
 Fixed Charge Coverage Ratio Fixed Charge Coverage Ratio Calculation Date
 -13-




---



##### 



Fixed Charges
 plus
 plus
  -14-




---



##### 



Foreign Subsidiary
 Foreign Subsidiary Total Assets
 GAAP provided
 Global Note Legend
 Global Notes
 Government Securities
  provided
 guarantee
 Guarantee
 Guarantor
 -15-




---



##### 



Hedging Obligations
 Holder
 IFRS
 Indebtedness
        provided however
 Indenture
 Independent Financial Advisor
 Indirect Participant
 -16-




---



##### 



Initial Purchasers
 Interest Payment Date
 Investment Grade Rating
 Investment Grade Securities
     Investments
 provided however
 less
   Investors
 -17-




---



##### 



ISIN
 Issue Date
 Issue Date Unrestricted Subsidiaries
 Issuer
 Legal Holiday
 Lien provided
 Merger
 Merger Agreement
 Moodys
 Net Income
 Net Proceeds
 Non-U.S. Person
 Notes
 -18-




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##### 



Obligations
 Offering Memorandum
 Officer
 Officers Certificate
 Opinion of Counsel
 Parent Other Parent provided
 Participant
 Permitted Asset Swap provided
 Permitted Holders provided
 Permitted Investments
 -19-




---



##### 



provided
  provided
       provided however
 provided however
 -20-




---



##### 



provided
           
 -21-




---



##### 



Permitted Liens
      provided
  provided however provided further however
 -22-




---



##### 



provided however provided further however
         provided however
   provided
 -23-




---



##### 



provided
      provided
  -24-




---



##### 



Indebtedness
 Person
 Preferred Stock
 Private Placement Legend
 Providence Investors
 Purchase Money Obligations
 QIB
 Qualified Proceeds provided
 Rating Agencies
 Receivables Facility
 Receivables Fees
 Receivables Subsidiary
 Record Date
 -25-




---



##### 



Registration Rights Agreement
 Regulation S-X
 Regulation S Global Note
 Regulation S Permanent Global Note
 Regulation S Temporary Global Note
 Regulation S Temporary Global Note Legend
 Related Business Assets provided
 Responsible Officer
 Restricted Cash
 Restricted Definitive Note
 Restricted Global Note
 Restricted Investment
 Restricted Period
 Restricted Subsidiary provided however
 -26-




---



##### 



Rule 144
 Rule 144A
 Rule 903
 Rule 904
 S&P
 Sale and Lease-Back Transaction
 SEC
 Secured Indebtedness
 Securities Act
 Senior Credit Facilities provided
 Senior Indebtedness
   -27-




---



##### 



provided
   provided however
      Significant Party
 Similar Business
 Standard Receivables Undertakings
 Sterling Holdco Inc.
 Sterling Parent Inc.
 Subordinated Indebtedness
   Subsidiary
  -28-




---



##### 



Supplemental Indenture
 Total Assets
 Transactions
 Treasury Rate provided however
 Trust Indenture Act
 Trustee
 Uniform Commercial Code
 Unrestricted Definitive Notes
 Unrestricted Global Notes
 Unrestricted Subsidiary
   provided
 -29-




---



##### 



provided
     U.S. Person
 Voting Stock
 Weighted Average Life to Maturity
   Wholly-Owned Subsidiary
 Section 1.02. Other Definitions
 Defined inTerm
    
    SectionAcceptable Commitment
    
    
    4.10Affiliate Transaction
    
    
    4.11Asset Sale Offer
    
    
    4.10
 -30-




---



##### 



Defined inTerm
    
    SectionAuthentication Order
    
    
    2.02Change of Control Offer
    
    
    4.14Change of Control Payment
    
    
    4.14Change of Control Payment Date
    
    
    4.14Covenant Defeasance
    
    
    8.03DTC
    
    
    2.03Event of Default
    
    
    6.01incur
    
    
    4.09Legal Defeasance
    
    
    8.02notice of acceleration
    
    
    6.02Offer Amount
    
    
    3.09Offer Period
    
    
    3.09OID
    
    
    2.06Pari Passu Indebtedness
    
    
    4.10Paying Agent
    
    
    2.03Purchase Date
    
    
    3.09redeem
    
    
    3.09redemption
    
    
    3.09Redemption Date
    
    Exhibit ARefinancing Indebtedness
    
    
    4.09Refunding Capital Stock
    
    
    4.07Registrar
    
    
    2.03Restricted Payments
    
    
    4.07Second Commitment
    
    
    4.10Successor Company
    
    
    5.01Successor Person
    
    
    5.01Treasury Capital Stock
    
    
    4.07
 Section 1.03. Incorporation by Reference of Trust Indenture Act
   indenture securities
 indenture security holder
 indenture to be qualified
 indenture trustee institutional trustee
 obligor
  Section 1.04. Rules of Construction
  -31-




---



##### 



Section 1.05. Acts of
Holders
      -32-




---



##### 



ARTICLE II
 THE NOTES
 Section 2.01. Form and
Dating; Terms
 General
 Global Notes
 Temporary Global Notes
 -33-




---



##### 



Terms
   Issuance of Additional Notes
     Section 2.02. Execution
and Authentication
  -34-




---



##### 



Authentication Order
  Section 2.03. Registrar
and Paying Agent
 Registrar Paying Agent Note
Register
 DTC
  Section 2.04. Paying
Agent to Hold Money in Trust
  Section 2.05. Holder
Lists
  -35-




---



##### 



Section 2.06. Transfer and Exchange
 Transfer and Exchange of Global Notes
 Transfer and Exchange of Beneficial Interests in the Global Notes
 Transfer of Beneficial Interests in the Same Global Note provided
 All Other Transfers and Exchanges of Beneficial Interests in Global Notes provided
 -36-




---



##### 



Transfer of Beneficial Interests in a Restricted Global Note to Another
Restricted Global Note
   Transfer or Exchange of Beneficial Interests in a Restricted Global Note for
Beneficial Interests in an Unrestricted Global Note
     Transfer or Exchange of Beneficial Interests in an Unrestricted Global Note for
Beneficial Interests in a Restricted Global Note Prohibited
 Transfer or Exchange of Beneficial Interests in Global Notes for Definitive Notes
 Beneficial Interests in Restricted Global Notes to Restricted Definitive Notes
 -37-




---



##### 



Beneficial Interests in Regulation S Temporary Global Note to Definitive Notes
 Beneficial Interests in Restricted Global Notes to Unrestricted Definitive
Notes
  -38-




---



##### 



Beneficial Interests in Unrestricted Global Notes to Unrestricted Definitive
Notes
 Transfer and Exchange of Definitive Notes for Beneficial Interests in the Global Notes
 Restricted Definitive Notes to Beneficial Interest in Restricted Global Notes
    -39-




---



##### 



Restricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes
     Unrestricted Definitive Notes to Beneficial Interests in Unrestricted Global
Notes
 Unrestricted Definitive Notes to Beneficial Interests in Restricted Global Notes
Prohibited
 Issuance of Unrestricted Global Notes
 Transfer and Exchange of Definitive Notes for Definitive Notes
 -40-




---



##### 



Transfer or Exchange of Restricted Definitive Notes to Unrestricted Definitive
Notes
     Transfer of Unrestricted Definitive Notes to Unrestricted Definitive Notes
 Legends
 -41-




---



##### 



Private Placement Legend
     Global Note Legend
  -42-




---



##### 



Regulation S Temporary Global Note Legend
   -43-




---



##### 



Cancellation and/or Adjustment of Global Notes
 [RESERVED]
 General Provisions Relating to Transfers and Exchanges
     -44-




---



##### 



Section 2.07. Replacement Notes
   Section 2.08. Outstanding Notes
  -45-




---



##### 



Section 2.09. Treasury
Notes
  Section 2.10. Temporary
Notes
   Section 2.11. Cancellation
  Section 2.12. Defaulted
Interest
 provided
 -46-




---



##### 



Section 2.13. CUSIP/ISIN
Numbers
 provided
 Section 2.14. Calculation of Principal Amount of Securities
  ARTICLE III
 REDEMPTION AND PREPAYMENT
 Section 3.01. Notices to
Trustee
  Section 3.02. Selection
of Notes to Be Redeemed
  -47-




---



##### 



Section 3.03. Notice of
Redemption
            provided
 -48-




---



##### 



Section 3.04. Effect of
Notice of Redemption
  Section 3.05. Deposit of
Redemption Price
   Section 3.06. Notes
Redeemed in Part
 provided
 Section 3.07. Optional
Redemption
   -49-




---



##### 



Section 3.08. Mandatory Redemption
  Section 3.09. Offer to Purchase
  Offer Period Purchase Date Offer Amount
          -50-




---



##### 



ARTICLE IV
 COVENANTS
 Section 4.01. Payment of Notes
  -51-




---



##### 



Section 4.02. Maintenance of Office or Agency
  provided
  Section 4.03. Reports
 provided provided
 -52-




---



##### 



provided Reporting Date provided
     -53-




---



##### 



Section 4.04. Compliance
Certificate; Notices of Default
  Section 4.05. Taxes
  Section 4.06. Stay,
Extension and Usury Laws
  Section 4.07. Restricted
Payments
      -54-




---



##### 



Restricted Payments
    plus
   -55-




---



##### 



provided however plus
 plus
   plus
   -56-




---



##### 



Treasury Capital Stock Refunding
Capital Stock
  plus plus
    provided however
 -57-




---



##### 



provided further
 plus
 less
  provided further
  provided
 provided
  provided however
  -58-




---



##### 



provided
   provided provided
   -59-




---



##### 



provided however
 provided
    -60-




---



##### 



Section 4.08. Restrictions on Distributions from Restricted
Subsidiaries
     except however
     provided
    
 -61-




---



##### 



provided
  Section 4.09. Incurrence of Additional Indebtedness and Issuance of
Disqualified Stock and Preferred Stock
 incur incurrence
 -62-




---



##### 



provided however provided further
  plus
    provided however
 -63-




---



##### 



provided however
 provided provided
further
 provided
    -64-




---



##### 



Refinancing Indebtedness provided however
  pari passu pari passu
     provided further
 provided
   -65-




---



##### 



provided
           -66-




---



##### 



provided
   provided
 provided
  -67-




---



##### 



Section 4.10. Asset Sales
   provided
        provided
 -68-




---



##### 



plus
  provided
 provided Acceptable Commitment Second Commitment provided further
 Excess Proceeds pari passu Pari Passu Indebtedness Asset Sale Offer
   -69-




---



##### 



Section 4.11. Affiliate
Transactions
 Affiliate Transaction
      plus
   -70-




---



##### 



provided however
          provided however
 -71-




---



##### 



Section 4.12. Liens
     Section 4.13. Corporate Existence
 provided however
 Section 4.14. Repurchase at the Option of Holders Upon a Change of
Control
 Change of Control Offer Change of Control Payment plus
  -72-




---



##### 



Change of Control Payment
Date
    provided
         
 -73-




---



##### 



Section 4.15. Guarantees
of Indebtedness by Restricted Subsidiaries
 provided
 ARTICLE V
 SUCCESSORS
 Section 5.01. Merger,
Consolidation and Sale of All or Substantially All
Assets
  Successor Company
   
 -74-




---



##### 



Successor Person
     -75-




---



##### 



Section 5.02. Successor Corporation Substituted
 provided
 ARTICLE VI
 DEFAULTS AND REMEDIES
 Section 6.01. Events of Default
 Event of Default
      -76-




---



##### 



Section 6.02. Acceleration
  -77-




---



##### 



provided
    Section 6.03. Other Remedies
   Section 6.04. Waiver of Defaults
  Section 6.05. Control by Majority
  -78-




---



##### 



Section 6.06. Limitation on Suits
        Section 6.07. Rights of Holders to Receive Payment
  Section 6.08. Collection Suit by Trustee
  Section 6.09. Restoration of Rights and Remedies
  Section 6.10. Rights and Remedies Cumulative
  -79-




---



##### 



Section 6.11. Delay or Omission Not Waiver
  Section 6.12. Trustee May File Proofs of Claim
  Section 6.13. Priorities
  First
 Second
 Third
  Section 6.14. Undertaking for Costs
  -80-




---



##### 



ARTICLE VII
 TRUSTEE
 Section 7.01. Duties of Trustee
            -81-




---



##### 



Section 7.02. Rights of
Trustee
            -82-




---



##### 



Section 7.03. Individual
Rights of Trustee
  Section 7.04. Trustees Disclaimer
  Section 7.05. Notice of
Defaults
  Section 7.06. Reports by
Trustee to Holders
   Section 7.07. Compensation and Indemnity
   -83-




---



##### 



Section 7.08. Replacement of Trustee
         -84-




---



##### 



provided
 Section 7.09. Successor
Trustee by Merger, Etc.
  Section 7.10. Eligibility; Disqualification
   Section 7.11. Preferential Collection of Claims Against Issuer
  ARTICLE VIII
 LEGAL DEFEASANCE AND COVENANT DEFEASANCE
 Section 8.01. Option to
Effect Legal Defeasance or Covenant
Defeasance
  Section 8.02. Legal
Defeasance and Discharge
 Legal Defeasance
 -85-




---



##### 



Section 8.03. Covenant Defeasance
 Covenant Defeasance
 Section 8.04. Conditions to Legal or Covenant Defeasance
    -86-




---



##### 



Section 8.05. Deposited Cash and U.S. Government Securities to Be Held in
Trust; Other Miscellaneous Provisions
 Trustee
 -87-




---



##### 



Section 8.06. Repayment to Issuer
  Section 8.07. Reinstatement
 provided
 ARTICLE IX
 AMENDMENT, SUPPLEMENT AND WAIVER
 Section 9.01. Without Consent of Holders of Notes
       -88-




---



##### 



provided however
   Section 9.02. With Consent of Holders of Notes
  -89-




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##### 



-90-




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##### 



Section 9.03. Compliance with Trust Indenture Act
  Section 9.04. Revocation and Effect of Consents
   Section 9.05. Notation on or Exchange of Notes
   Section 9.06. Trustee to Sign Amendments, Etc.
  Section 9.07. Payment for Consent
  -91-




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##### 



ARTICLE X
 GUARANTEES
 Section 10.01. Guarantee
      -92-




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##### 



pari passu
  Section 10.02. Limitation on Guarantor Liability
  Section 10.03. Execution
and Delivery of Guarantee
     -93-




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##### 



Section 10.04. Subrogation
 provided
 Section 10.05. Benefits Acknowledged
  Section 10.06. Release of Guarantees
        -94-




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##### 



ARTICLE XI
 SATISFACTION AND DISCHARGE
 Section 11.01. Satisfaction and Discharge
      provided, however
  Section 11.02. Application of Trust Money
  provided
 -95-




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##### 



ARTICLE XII
 MISCELLANEOUS
 Section 12.01. Trust Indenture Act Controls
  Section 12.02. Notices
   
  
  
  provided
  -96-




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##### 



Section 12.03. Communication by Holders of Notes with Other Holders of
Notes
  Section 12.04. Certificate and Opinion as to Conditions Precedent
    Section 12.05. Statements Required in Certificate or Opinion
      -97-




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##### 



Section 12.06. Rules by
Trustee and Agents
  Section 12.07. No
Personal Liability of Directors, Officers, Employees and
Stockholders
  Section 12.08. Governing
Law
  Section 12.09. Waiver of
Jury Trial
  Section 12.10. Force
Majeure
  Section 12.11. No
Adverse Interpretation of Other Agreements
  Section 12.12. Successors
  Section 12.13. Severability
  -98-




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##### 



Section 12.14. Counterpart Originals
  Section 12.15. Table of
Contents, Headings, Etc
   -99-




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##### 



Issuer:
STERLING MERGER INC.By:
    /s/ Christopher C. RagonaName:
    Christopher C. RagonaTitle:
    Vice President, Secretary and Treasurer signature pages to the senior note indenture




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##### 



Trustee: 
WILMINGTON TRUST, NATIONAL ASSOCIATIONBy:
    /s/ Joseph P. ODonnellName:
    Joseph P. ODonnellTitle:
    Vice President signature pages to the senior note indenture




---



##### 



EXHIBIT A
 
 [Face of Note]
    A-1




---



##### 



STERLING MERGER INC.
    A-2




---



##### 



STERLING MERGER INC.By:Name:Title: A-3




---



##### 



WILMINGTON TRUST, NATIONAL ASSOCIATION
as TrusteeBy:Authorized Signatory A-4




---



##### 



Issuer Interest Payment Date Record Date
  provided 1 2
   
 1
    
    Applicable if this Note is represented by a
Global Note registered in the name of or held by DTC or its nominee on the
relevant record date.2
    
    Applicable if this Note is represented by
certificated notes. A-5




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##### 



Indenture Trust Indenture Act
  Redemption Date
  Year
    
    Percentage2015
    
    
    105.500
    %2016
    
    
    102.750
    %2017 and thereafter
    
    
    100.000
    %
 provided provided further
  A-6




---



##### 



A-7




---



##### 



ET SEQ CODE OID
 A-8




---



##### 



ASSIGNMENT FORM
  (I) or (we) assign and transfer this Note to:(Insert assignees legal name)
  
 
 
 
 
  and irrevocably appointto transfer this Note on the books of the Issuer. The agent may substitute another to act for him.
 
 Your Signature:(Sign exactly as your name appears on
the face of this Note)
  *
    
    Participant in a recognized Signature Guarantee Medallion Program (or other
signature guarantor acceptable to the Trustee). A-9




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##### 



OPTION OF HOLDER TO ELECT PURCHASE
  o Section 4.10
    
    o Section 4.14
    Your Signature:(Sign exactly as your name appears on
the face of this Note)Tax Identification No.:
  *
    
    Participant in a recognized Signature Guarantee Medallion Program (or other
signature guarantor acceptable to the Trustee). A-10




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##### 



SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE*
  Principal Amount ofAmount of decrease
    
    Amount of increase in
    
    this Global Note
    
    Signature ofDate of
    
    in Principal Amount
    
    Principal Amount of
    
    following such
    
    authorized office ofExchange
    
    of this Global Note
    
    this Global Note
    
    decrease or increase
    
    Trustee or Custodian
 
 *
    
    This schedule should be included only if the Note is issued in global form. A-11




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##### 



FORM OF CERTIFICATE OF TRANSFER
 
 
 Re:
    
    11.00% Senior Notes due 2019
 Indenture
 Transferor Transfer Transferee
 [CHECK ALL THAT APPLY]
 o Securities Act
 o
 o
 B-1




---



##### 



o
  o
  o
 o
 o
 o
 o
 B-2




---



##### 



[Insert Name of Transferor]By:Name:Title: 
 B-3




---



##### 



o
 o
 o
 o
   o
 o
 o
 o
 o
 o
 B-4




---



##### 



FORM OF CERTIFICATE OF EXCHANGE
 
 
 Re:
    
    11.00% Senior Notes due 2019
 Indenture
 Owner Exchange
  o Securities Act
 o
 o
 C-1




---



##### 



o
  o
 o
  [Insert Name of Transferor]By:Name:Title: 
 C-2




---



##### 



[FORM OF SUPPLEMENTAL INDENTURE
TO BE DELIVERED BY SUBSEQUENT GUARANTORS]
 Supplemental Indenture Guaranteeing Subsidiary Issuer
 W I T N E S S E T H
 Predecessor Company Indenture Notes
 Guarantee
   Defined Terms
 Agreement to Guarantee
    D-1




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##### 



D-2




---



##### 



pari passu
  Execution and Delivery
 Merger, Consolidation or Sale of All or Substantially All Assets of a Guarantor
   provided
 Releases
 No Recourse Against Others
 D-3




---



##### 



Governing Law
 Counterparts
 Effect of Headings
 The Trustee
 Subrogation
 Benefits Acknowledged
 Successors
 Parties
 Ratification of Indenture; Supplemental Indentures Part of Indenture
 D-4




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##### 



[GUARANTEEING SUBSIDIARY]By:Name:Title: WILMINGTON TRUST, NATIONAL ASSOCIATION
as TrusteeBy:Name:Title: D-5